Home / 71,003.24-97,984.86-39,172.16

Finding the Fourth Proportional to 71,003.24, 97,984.86 and 39,172.16

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Solution

The fourth proportional to 71,003.24, 97,984.86 and 39,172.16 is: 54,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,003.24 : 97,984.86 = 39,172.16 : x
  2. Step 2: Convert to fraction form
    71,003.24/97,984.86 = 39,172.16/x
  3. Step 3: Cross multiply
    71,003.24x = 97,984.86 × 39,172.16
  4. Step 4: Simplify right side
    71,003.24x = 3,838,278,613.50
  5. Step 5: Solve for x
    x = 3,838,278,613.50/71,003.24
  6. Step 6: Final answer
    x = 54,057.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.